208012506099768 has 64 divisors (see below), whose sum is σ = 596451630412800. Its totient is φ = 67100808417120.

The previous prime is 208012506099721. The next prime is 208012506099823. The reversal of 208012506099768 is 867990605210802.

208012506099768 is a `hidden beast` number, since 2 + 0 + 8 + 0 + 12 + 5 + 0 + 609 + 9 + 7 + 6 + 8 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15532587846 + ... + 15532601237.

It is an arithmetic number, because the mean of its divisors is an integer number (9319556725200).

Almost surely, 2^{208012506099768} is an apocalyptic number.

It is an amenable number.

208012506099768 is an abundant number, since it is smaller than the sum of its proper divisors (388439124313032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208012506099768 is a wasteful number, since it uses less digits than its factorization.

208012506099768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31065189129 (or 31065189119 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 208012506099768 in words is "two hundred eight trillion, twelve billion, five hundred six million, ninety-nine thousand, seven hundred sixty-eight".